A man of mass `m` stands on a platform of equal mass `m` and pulls himself by two ropes passing over pulleys as shown in figure.If he pulls each rope with a force equal to half his weight ,his upwards acceleration would be

A man of mass m stands on a plateform of equal mass m and pulls himself by two rops passing over pulleys as shown in figure.If he pulls each rop with a force equal to half his weight ,his upwards acceleration would be

A painter of mass M stands on a platfrom of mass m and pulls himself up by two ropes which hang over pulley as shown in fig. He pulls each rope with force F and moves upward with a uniform acceleration a. find a, neglecting the fact that no one could do this for long time.

A man of mass m stands on a frame of mass M. He pulls on a light rope, which passes over a pulley. The other end of the rope is attached to the frame. For the system to be in equilibrium, what force must the man exert on the rope?

A mam of mass 50 g stands on a frame of mass 30 g. He pulls on a light rope which passes over a pulley. The other end of the rope is attached to the frame. For the system to be in equilibrium what force man must exert on the rope?

Block A of mass m//2 is connected to one end of light rope which passes over a pulley as shown in fig. A man of mass m climbs the other end of rope with a relative acceleration of g//6 with respect to rope. Find the acceleration of block A and tension in the rope.

Two blocks of masses m and M are placed on a horizontal frictionless table connected by light spring as shown in figure. The Mass M is pulled to the right with a force F It the acceleration of mass m is a then the acceleration of M will be .

A man with mass 85 kg stands on a platform with mass 25 kg. He pulls on the free end of a rope that runs over a pulley on the ceiling and has its other end fastened to the platform. The mass of the rope and the mass of the pulley can be neglected, and the pulley is frictionless. With what force does he have to pull so that he and the platform have an upward acceleration of 2.2m/s^(2) . (Take g= 10m/s^(2) )

A man of mass M stands on a.box of mass m as shown in the Fig. 2E. l (a). A rope attached to 'the box and passing over an overhead pulley allows the man to raise himself and the box by , pulling the rope downward. (i) With what minimum force should the ' man pull the rope so as to prevent himself , from falling down. (ii) If the man pulls the rope with a force F greater than the minimum force, then determine the acceleration of the (man + box) system. (iii) Determine. the normal reaction between the man and the trolley.